CN110086287A - A kind of new-energy automobile power motor sealing structure - Google Patents
A kind of new-energy automobile power motor sealing structure Download PDFInfo
- Publication number
- CN110086287A CN110086287A CN201910479667.7A CN201910479667A CN110086287A CN 110086287 A CN110086287 A CN 110086287A CN 201910479667 A CN201910479667 A CN 201910479667A CN 110086287 A CN110086287 A CN 110086287A
- Authority
- CN
- China
- Prior art keywords
- side seal
- pump chamber
- outer side
- oil
- interior side
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 39
- 239000000446 fuel Substances 0.000 claims abstract description 25
- 239000003921 oil Substances 0.000 claims description 70
- 239000010687 lubricating oil Substances 0.000 claims description 24
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 238000005266 casting Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 210000001611 motor endplate Anatomy 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 230000001050 lubricating effect Effects 0.000 abstract description 7
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 238000005461 lubrication Methods 0.000 description 7
- 239000004519 grease Substances 0.000 description 3
- 238000002679 ablation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 230000001550 time effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/124—Sealing of shafts
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The present invention provides a kind of new-energy automobile power motor sealing structure, the sealing performance for making the link position of motor shaft and electric motor end cap that there is favorable lubricating property, ensure link position.It includes motor shaft, electric motor end cap, the motor shaft runs through the centre bore of the electric motor end cap, the two sides inner ring that the electric motor end cap corresponds to the centre bore of the motor shaft is respectively arranged with interior side seal, outer side seal, the interior side seal, spaced distance between outer side seal, the motor shaft runs through the interior side seal, outer side seal, the motor shaft is located at the interior side seal, pump leaf rotor is set in length between outer side seal, the outer region that the electric motor end cap corresponds to the pump leaf rotor is provided with pump chamber, the pump chamber is by the interior side seal, outer side seal two sides closing setting, the pump chamber is circumscribed with oil outlet pipe, the corresponding end of oil return line, it further includes having external fuel reserve tank.
Description
Technical field
The present invention relates to the technical field of motor seal, specially a kind of new-energy automobile power motor sealing structure.
Background technique
New-energy automobile power motor is higher and higher for seal request, except the seal request to product export Shi Yougao
Outside, it is also necessary to allow motor to keep sealing state for a long time, to ensure the safe and reliable of power motor；It is more on new energy motor at present
It is sealed using single oil sealing or double oil seal, but during real-world operation, since motor speed is very high, while electric engine oil seal
Grease lubrication can only be used mostly, and the frictional heat of oil sealing and motor shaft contact position can not effectively be taken away by grease, cause easily
There is axis surface to turn blue ablation, oil seal lip ablation, leads to oil seal failure, motor seal failure, and then power motor is caused to lose
Effect；Simultaneously as the golf calorific value to rub at axis and oil sealing, causes the grease lubrication at oil seal lip position that can not keep having for a long time
Effect.
Summary of the invention
In view of the above-mentioned problems, making motor the present invention provides a kind of new-energy automobile power motor sealing structure
The sealing performance that the link position of axis and electric motor end cap has favorable lubricating property, ensures link position.
A kind of new-energy automobile power motor sealing structure, it is characterised in that: it includes motor shaft, electric motor end cap, institute
The centre bore that motor shaft runs through the electric motor end cap is stated, the electric motor end cap corresponds in the two sides of the centre bore of the motor shaft
Circle is respectively arranged with interior side seal, outer side seal, spaced distance between the interior side seal, outer side seal, the motor
Axis is on the interior side seal, outer side seal, the length between the interior side seal, outer side seal of the motor shaft
It is set with pump leaf rotor, the outer region that the electric motor end cap corresponds to the pump leaf rotor is provided with pump chamber, the pump chamber quilt
The interior side seal, the closing setting of outer side seal two sides, the pump chamber are circumscribed with oil outlet pipe, the corresponding end of oil return line,
It further include having external fuel reserve tank, the top of the fuel reserve tank connects the oil outlet of the oil outlet pipe, the bottom of the fuel reserve tank
Portion connects the oil inlet end of the oil return line, the interior side seal, outer side seal lip arrange and set towards pump chamber in opposite directions
It sets.
It is further characterized by: the coupling part corresponding to motor shaft of the electric motor end cap thickeies setting, the company
The thickness of socket part point includes the thickness of interior side seal thickness, outer side seal thickness, pump chamber, and the pump chamber is built in the interconnecting piece
The thickness central region divided；
The top of the pump chamber connects the oil inlet end of the oil outlet pipe, and the bottom of the pump chamber connects the oil return line
Oil outlet；
Under motor shaft horizontal cross arrangement states, the interior side seal, the diameter of outer side seal are identical, in the fuel reserve tank
The highest liquid level of lubricating oil is higher than the highest point setting of interior side seal, outer side seal, it is ensured that the lubricating oil in pump chamber
Submerge oil sealing；
Breather plug is provided at the top of the fuel reserve tank, the breather plug ensures entire internal connected space and outside atmosphere
Weighing apparatus is flattened, is prevented because high temperature leads to that air pressure becomes larger or low temperature causes memory space air pressure to be lower, and it is different to cause oil sealing to occur
Often；
The fuel reserve tank is directly integrated on motor end plate, so as to improve the heat-sinking capability of lubricating oil；
The length of the oil return line is arranged to the tangent curved pipe of several segments and combines to be formed, and lengthens oil return line, is promoted
Effective heat dissipation to lubricating oil；
The electric motor end cap passes through casting and forming, and the pump chamber in the electric motor end cap is logical together with oil outlet pipe, oil return line
Airtight test is crossed to confirm the leakproofness in entire circuit；
According to different electric motor of automobile and different revolving speed and duty requirements, the pump number of sheets of the pump leaf rotor is adjusted
Amount and moulding, to change flow of the lubricating oil in entire circuit, and then meet the oil sealing lubrication needs of different dynamic motor,
Realize the promotion to power motor sealing reliability.
After applying the present invention, when motor high speed rotation, be arranged on motor shaft pump leaf rotor (can by interference or other
Various suitable mechanical connection manner installations) with motor shaft synchronous rotary, drive lubricating oil to pump out by oil outlet pipe, fuel reserve tank
Interior lubricating oil enters the region where pump leaf rotor by oil return line；The oil pumped out still enters in fuel reserve tank, realizes
The circulation of entire lubricating oil；Since the lip of interior side seal, outer side seal is arranged in opposite directions and is arranged towards pump chamber, pump chamber
Interior lubricating oil guarantees the effectively lubricating of lip；It makes the link position of motor shaft and electric motor end cap have good lubricating properties
It can, ensure the sealing performance of link position.
Detailed description of the invention
Fig. 1 is structure schematic diagram of the invention；
Fig. 2 is that A-A of the present invention cuts open structural schematic diagram；
Title corresponding to serial number is as follows in figure:
It is motor shaft 1, electric motor end cap 2, coupling part 21, interior side seal 3, outer side seal 4, pump leaf rotor 5, pump chamber 6, fuel-displaced
Pipeline 7, oil return line 8, fuel reserve tank 9, lubricating oil 10, breather plug 11.
Specific embodiment
A kind of new-energy automobile power motor sealing structure, is shown in Fig. 1, Fig. 2: it includes motor shaft 1, electric motor end cap 2, electricity
Arbor 1 runs through the centre bore of electric motor end cap 2, and the two sides inner ring that electric motor end cap 2 corresponds to the centre bore of motor shaft 1 is respectively arranged with
Interior side seal 3, outer side seal 4, spaced distance between interior side seal 3, outer side seal 4, motor shaft 1 through interior side seal 3,
Outer side seal 4 is set with pump leaf rotor 5, motor side in the length between interior side seal 3, outer side seal 4 of motor shaft 1
The outer region that lid 2 corresponds to pump leaf rotor 5 is provided with pump chamber 6, and pump chamber 6 is set by interior side seal 3, the closing of 4 two sides of outer side seal
It sets, pump chamber 6 is circumscribed with the corresponding end of oil outlet pipe 7, oil return line 8, further includes having external fuel reserve tank 9, the top of fuel reserve tank 9
Portion connects the oil outlet of oil outlet pipe 7, the oil inlet end of the bottom connection oil return line 8 of fuel reserve tank 9, interior side seal 3, outer side seal
4 lip is arranged in opposite directions and is arranged towards pump chamber 6.
The coupling part 21 corresponding to motor shaft 1 of electric motor end cap 2 thickeies setting, and the thickness of coupling part 21 includes inside
3 thickness of oil sealing, 4 thickness of outer side seal, pump chamber 6 thickness, pump chamber 6 is built in the thickness central region of coupling part 21；
The oil inlet end of the top connection oil outlet pipe 7 of pump chamber 6, the oil outlet of the bottom connection oil return line 8 of pump chamber 6；
Under 1 horizontal cross arrangement states of motor shaft, interior side seal 3, the diameter of outer side seal 4 are identical, lubrication in fuel reserve tank 9
Oily 10 highest liquid levels are higher than the highest point setting of interior side seal 3, outer side seal 4, it is ensured that the lubrication oil immersion in pump chamber 6
No oil sealing；
The top of fuel reserve tank 9 is provided with breather plug 11, and breather plug 11 ensures entire internal connected space and external pressure
Balance is prevented because high temperature leads to that air pressure becomes larger or low temperature causes memory space air pressure to be lower, and it is abnormal to cause oil sealing to occur；
Fuel reserve tank 9 is directly integrated on motor end plate, so as to improve the heat-sinking capability of lubricating oil；
The length of oil return line 8 is arranged to the tangent curved pipe of several segments and combines to be formed, and lengthens oil return line 8, promotion pair
Effective heat dissipation of lubricating oil；
Electric motor end cap 2 passes through casting and forming, and the pump chamber 6 in electric motor end cap 2 passes through gas together with oil outlet pipe 7, oil return line 8
Density test confirms the leakproofness in entire circuit；
According to different electric motor of automobile and different revolving speed and duty requirements, the pump number of sheets amount of adjustment pump leaf rotor 5 and
Moulding to change flow of the lubricating oil in entire circuit, and then meets the oil sealing lubrication needs of different dynamic motor, realizes
Promotion to power motor sealing reliability.
Motor shaft, electric motor end cap, interior side seal, outer side seal and oil return line, fuel reserve tank form lubricating oil and deposit out
Space is stored up, and the setting pump leaf rotor on motor shaft, pump leaf rotor can drive lubricating oil when rotating with motor shaft, lubricating oil is made to exist
Entire sealing realizes circulation in realizing；The purpose for designing lubrication oil circulation is can effectively to take away motor by the circulation of lubricating oil
Axis when rotating at high speed, with oil sealing friction generate huge heat；Lubricating oil can keep contacting oil sealing with motor shaft simultaneously
The effectively lubricating of position, to ensure that the high service life of oil sealing
When motor high speed rotation, the pump leaf rotor being arranged on motor shaft (can be by interference or other various suitable machines
The installation of tool connection type) with motor shaft synchronous rotary, drive lubricating oil to pump out by oil outlet pipe, the lubricating oil in fuel reserve tank is logical
It crosses oil return line and enters the region where pump leaf rotor；The oil pumped out still enters in fuel reserve tank, realizes entire lubricating oil
Circulation；Since the lip of interior side seal, outer side seal is arranged in opposite directions and is arranged towards pump chamber, the lubricating oil in pump chamber is protected
Demonstrate,prove the effectively lubricating of lip；It makes the link position of motor shaft and electric motor end cap have favorable lubricating property, ensure connection position
The sealing performance set.
Its innovation: the integrity problem of the lip shape oil sealing of power motor sealing is thoroughly solved；Creative addition
Impeller of pump scheme, recycles lubricating oil；Exploitativeness is strong.
Its advantages are as follows: the new energy power motor service life is substantially improved；Perplex the one of new energy power motor service life
Hang-up obtains thoroughly effectively solving；It is easy to batch to implement.
Specific embodiments of the present invention are described in detail above, but content is only the preferable implementation of the invention
Example, should not be considered as limiting the invention the practical range of creation.It is all to become according to equalization made by the invention application range
Change and improve etc., it shall still fall within the scope of this patent.
Claims (9)
1. a kind of new-energy automobile power motor sealing structure is it is characterized by: it includes motor shaft, electric motor end cap, the electricity
Arbor runs through the centre bore of the electric motor end cap, and the electric motor end cap corresponds to the two sides inner ring point of the centre bore of the motor shaft
It is not provided with interior side seal, outer side seal, spaced distance between the interior side seal, outer side seal, the motor shaft passes through
The interior side seal, outer side seal are worn, is set in the length between the interior side seal, outer side seal of the motor shaft
There is pump leaf rotor, the outer region that the electric motor end cap corresponds to the pump leaf rotor is provided with pump chamber, and the pump chamber is described
Interior side seal, the closing setting of outer side seal two sides, the pump chamber are circumscribed with oil outlet pipe, the corresponding end of oil return line, also wrap
External fuel reserve tank is included, the top of the fuel reserve tank connects the oil outlet of the oil outlet pipe, and the bottom of the fuel reserve tank connects
Connect the oil inlet end of the oil return line, the interior side seal, outer side seal lip arrange and be arranged towards pump chamber in opposite directions.
2. a kind of new-energy automobile power motor sealing structure as described in claim 1, it is characterised in that: the motor side
The coupling part corresponding to motor shaft of lid thickeies setting, and the thickness of the coupling part includes interior side seal thickness, outside oil
The thickness of thickness, pump chamber is sealed, the pump chamber is built in the thickness central region of the coupling part.
3. a kind of new-energy automobile power motor sealing structure as described in claim 1, it is characterised in that: the pump chamber
Top connects the oil inlet end of the oil outlet pipe, and the bottom of the pump chamber connects the oil outlet of the oil return line.
4. a kind of new-energy automobile power motor sealing structure as described in claim 1, it is characterised in that: motor shaft is horizontal
Under lateral arrangement state, the interior side seal, the diameter of outer side seal are identical, and the highest liquid level of lubricating oil is high in the fuel reserve tank
Degree is higher than the highest point setting of interior side seal, outer side seal.
5. a kind of new-energy automobile power motor sealing structure as described in claim 1, it is characterised in that: the fuel reserve tank
Top be provided with breather plug, the breather plug ensures that entire internal connected space and external pressure balance.
6. a kind of new-energy automobile power motor sealing structure as described in claim 1, it is characterised in that: the fuel reserve tank
It is directly integrated on motor end plate.
7. a kind of new-energy automobile power motor sealing structure as described in claim 1, it is characterised in that: the oil return pipe
The length on road is arranged to the tangent curved pipe of several segments and combines to be formed.
8. a kind of new-energy automobile power motor sealing structure as described in claim 1, it is characterised in that: the motor side
Lid passes through casting and forming, and the pump chamber in the electric motor end cap is whole to confirm by airtight test together with oil outlet pipe, oil return line
The leakproofness in a circuit.
9. a kind of new-energy automobile power motor sealing structure as described in claim 1, it is characterised in that: according to different
Electric motor of automobile and different revolving speed and duty requirements adjust the pump number of sheets amount and moulding of the pump leaf rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910479667.7A CN110086287A (en) | 2019-06-04 | 2019-06-04 | A kind of new-energy automobile power motor sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910479667.7A CN110086287A (en) | 2019-06-04 | 2019-06-04 | A kind of new-energy automobile power motor sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110086287A true CN110086287A (en) | 2019-08-02 |
Family
ID=67423375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910479667.7A Pending CN110086287A (en) | 2019-06-04 | 2019-06-04 | A kind of new-energy automobile power motor sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110086287A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425404A (en) * | 2019-08-30 | 2019-11-08 | 苏州绿控新能源科技有限公司 | A kind of lubrication system of new-energy automobile power motor bearing |
| CN115118055A (en) * | 2022-08-08 | 2022-09-27 | 浙江鲁溪密封件有限公司 | High leakproofness permanent-magnet machine pump mechanical seal structure |
| CN115118055B (en) * | 2022-08-08 | 2024-07-30 | 浙江鲁溪密封件有限公司 | High leakproofness permanent magnet motor pump mechanical seal structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1834487A (en) * | 2006-04-13 | 2006-09-20 | 上海交通大学 | Lub device of large diameter low speed sliding bearing machinery |
| CN207421286U (en) * | 2017-10-16 | 2018-05-29 | 东风汽车有限公司 | Oil seal of rear output end of transfer case of military off-road vehicle |
| CN108429384A (en) * | 2018-03-26 | 2018-08-21 | 精进电动科技股份有限公司 | The sealing structure at motor-shaft extending end |
| CN109538744A (en) * | 2018-12-19 | 2019-03-29 | 南京越博动力***股份有限公司 | A kind of electric vehicle input shaft spline self-lubricating device |
| CN209823555U (en) * | 2019-06-04 | 2019-12-20 | 苏州绿控传动科技股份有限公司 | Power motor seal structure for new energy automobile |
-
2019
- 2019-06-04 CN CN201910479667.7A patent/CN110086287A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1834487A (en) * | 2006-04-13 | 2006-09-20 | 上海交通大学 | Lub device of large diameter low speed sliding bearing machinery |
| CN207421286U (en) * | 2017-10-16 | 2018-05-29 | 东风汽车有限公司 | Oil seal of rear output end of transfer case of military off-road vehicle |
| CN108429384A (en) * | 2018-03-26 | 2018-08-21 | 精进电动科技股份有限公司 | The sealing structure at motor-shaft extending end |
| CN109538744A (en) * | 2018-12-19 | 2019-03-29 | 南京越博动力***股份有限公司 | A kind of electric vehicle input shaft spline self-lubricating device |
| CN209823555U (en) * | 2019-06-04 | 2019-12-20 | 苏州绿控传动科技股份有限公司 | Power motor seal structure for new energy automobile |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425404A (en) * | 2019-08-30 | 2019-11-08 | 苏州绿控新能源科技有限公司 | A kind of lubrication system of new-energy automobile power motor bearing |
| CN115118055A (en) * | 2022-08-08 | 2022-09-27 | 浙江鲁溪密封件有限公司 | High leakproofness permanent-magnet machine pump mechanical seal structure |
| CN115118055B (en) * | 2022-08-08 | 2024-07-30 | 浙江鲁溪密封件有限公司 | High leakproofness permanent magnet motor pump mechanical seal structure |
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